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Colour

#4070AB

  • #4070AB
  • Blue
  • Dark
  • Nearest: Steel blue

#4070AB is a blue with RGB values 64, 112, 171 and HSL 213°, 46%, 46%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4070AB#4070AB
HEX#4070AB
RGBrgb(64, 112, 171)
RGB (0–1)0.251, 0.4392, 0.6706
RGB percentages25.1%, 43.9%, 67.1%
HSLhsl(213.1, 45.5%, 46.1%)
HSV / HSBhsv(213.1, 62.6%, 67.1%)
CMYK62.6%, 34.5%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,223,147
CSS custom property--colour: #4070AB;

Brightness & contrast

Relative luminance0.15619WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.09:1
Contrast with white5.09:1WCAG normal text: AA
Contrast with black4.12:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#BF8F54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5774ADno red cones; affects about 1% of men; ΔE 5 from the original
Deuteranopia#4869AAno green cones; the most common form, about 1% of men; ΔE 6.2 from the original
Tritanopia#007E85no blue cones; rare, and affects men and women equally; ΔE 37.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.09:1WCAG large text: AAA
Contrast with black, large text4.12:1WCAG large text: AA

Named colours

Steel blue · ΔE 9.8Cornflower blue · ΔE 21.3Slate grey · ΔE 27Light slate grey · ΔE 27.4Dark slateblue · ΔE 28.9Dodgerblue · ΔE 30.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 9.83, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB7B40
Analogous#40A5AB, #4640AB
Triadic#AB4070, #70AB40
Split complementary#AB4540, #A6AB40
Tetradic#AB40A5, #AB7B40, #40AB46

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBDAEC
Lighter +30%#A6BFDE
Lighter +20%#81A4D0
Lighter +10%#5C8AC2
Darker −10%#325886
Darker −20%#243F61
Darker −30%#16273C
Darker −40%#080F17
More saturated +25%#236DC8
Less saturated −25%#5D738E

Channel breakdown

R64
G112
B171
Red64 (25.1%)
Green112 (43.9%)
Blue171 (67.1%)
Hue213.08°
Saturation (HSL)45.53%
Lightness46.08%
Dominant channelBlue
Hex per channelR 40 · G 70 · B AB

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Every value on this page was computed from “4070ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.